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PLATE III Kinds and diversity of ciliate nuclei.
Nuclei of diverse groups. Exact taxonomic positious ascertainable through use of Systematic Index, but it is clear that nuclei, in general, are not distinctive for whole groups of ciliates (in fact, all of the species belonging to any one of the genera included here do not necessarily show the same nuclear configuration). Micronuclei, solid black; macronuclei, stippled; endosomes or nucleoli, clear; homokaryotic nucleus (Stephanopogon), cross-hatched.


1. Vorticella.


2. Uroleptus(?).


3a,b. Stephanopogon, and an enlarged nucleus.


4a,b. Tracheloraphis, partially contracted, and enlarged nuclear apparatus.


5. Dileptus.


6. Paramecium.


7. Tetrahymena (amicronucleate strain).


8. Cyclidium.


9. Durchoniella.


l0a,b. Loxodes, and enlarged set of nuclei.


11. Spathidium.


12. Plagiotoma.


13. Urotricha.


14. Schizocaryum.


15. Leiotrocha.


16. Didinium.


17. Tintinnopsis.


18. Ephelota.


19. Parahypocoma.


20. Stentor.


2la,b. Spirochona, and
enlarged macronucleus
showing reorganization
band with direction
of its movement.


22. Euplotes, showing reorganization bands.


23. Parastylonychia.


24. Deltopylum.


25. Aspidisca, showing reorganization bands.


26. Brachonella.


27. Insignicoma.


28. Remanella.


29a,b. Chilodonella, and enlarged macronucleus.


30. Epidinium.


31. Nyctotherus.


32. Protanoplophrya.